1. The new neutrals
Keeping a palette neutral is fine. Just remember that it doesn't need to be white. Pale greens, soft terracottas and blues are a great alternative and will behave better, especially if your space suffers from low light (more on this below). If a lot of your space is in shadow (as is often the case with small homes and apartments) a white space actually becomes a grey space.
But if you're deciding to add colour, it doesn't have to be all or nothing. There's so much between highly saturated colours and whites that you can do beautiful things with. These days those sagey greens are pretty much a neutral. (When I was a kid, neutrals were beige and versions of beige). And you can do a lot with something like that – it's sort of hard to go wrong and the room will always feel better if it's that sagey green or a beautiful soft slightly muddy blue. It's just more interesting.
2. Consider how and when you use the space.
If you're a working parent, like I've always been, then you are mostly in your bedroom at night. And I like the dark seductiveness of a darker bedroom. Thinking about the light in the room and the activity in the room helps to determine the depth of colour that you want to go to.
If you're home during the day throughout the week, a darker colour could just get a little bit heavy day in day out. But if you, like me and many others, are really only home in the evening and the weekends, you get a different level of exposure. I think that our life does travel in these chunks.
3. Take ownership of your space
Having the freedom to paint your space is really important. I think it's difficult when people can't do that. But even when I lived in rentals, we still painted them. We just painted it when we left to return it to its original colour. Most paint companies now do a single coat white paint that covers most colours easily. And it really is worth it because it makes it your space. We've all lived places that are not ideal – that aren't quite what we want – and we make do. But when you get to live in the place that you love and you've made it what you want it to be, it will give you a kick every day.
Paint is one of the cheapest, most cost-effective ways to transform your space. It's pretty egalitarian. If you don't want to pay for painting, you can do it yourself. It's not complicated. People like to make painting sound complicated, but it's really not. It's actually reasonably hard to screw up.